Percolator.



L. WOJIDKOW.

PERCOLATOR.

APPLICAUON FILED APR. 3. 19:4.

Patented 00t.,24, 1916.

2 SHEETS-SHEET 1.

WITNESSES ms mum's r-srsns c0, PHDTD-LITNLZ. WASHING mu. m c.

L. wounxow.

PERCOLATOR.

APPLICATION FILED APR. 3. 1914 1,202,140. Patented Oct. 24,1916.

2 SHEETSSHEET 2.

UNITED sra'rns PATENT orator LOUIS WOJIDKOW, or BROOKLYN, NEW YORK, assIeNoR TO NEW YORK STAMPING COMPANY, OF BROOKLYN, NEW YORK. A o'ORPORA'rION OF NEW YORK' PERCOLATOR.

Specification of Letters Patent. Patented 01313.24, 1916,

Application filed Api'i13, 1914. Serial No. 829,280.

To all whom it may concern Be it known that I, Loiis WOJIDKOW, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have inventedacertain new and usefullmprovement in Percolators, of Which the following is a full, clear, and 'eX- act description. v

This invention is in the nature of improvements on the percolator forming the subject of my application Seri'alNo. 726,397, filedOctober 17, 1912 (Patent No. 1,095,975, dated May 5, 191 1) "T he improvements relate to the means for connecting the reservoir with-its lamp stand, so as to prevent its accidental escape or detachment.

In the accompanying drawings illustrating thein'vention, in the several figures of which like parts are similarly designated, Figure 1 is a vertical section showing a stand percolator containing the several improvements. Fig. 2 shows in perspectivethe three separated parts of the percolator tube valve; Fig. 3 is a longitudinal section of'th'e valve, and Fig. 4 is a rear perspective view of the valve disk. Fig. 5' is an elevation of the spreader and of the percolator tube, on a larger scale. Fig. 6 is a'bottom plan view of the heatingplate and its feet. Fig.7 is a top plan view of the stand, one of its legs being broken away. Fig. 8 is a top plan View of the percolator tube and coffee holder or cup. Fig. 9 is a top plan view of the upper portior'i of the reservoir. Fig. 10 is an inverted plan view of the bottom of the lam The reservoir 1 may be ofany approved construction, and provided with a faucet 2, if of the-urn or "stand type, or with a spout (not shown) if of the stove type. The bottom of the reservoir has a depending well 3, opening into it, and provided with a bottom in the form of a laterally extended plate or disk 4, herein referred to as the heating plate. The well and heatingplate may be a one-piece casting and applied to the reservoir in any suitable manner. The well is inclosedtby a shell 5 fixed to the reservoir and flaring thence downwardly until its bottom stands just above and inside theperiphe'ral plane of the heating plate, thus leaving an air circ lating space between itself and the well and upper surface of the heating p1ate; This shell not only has the function stated,.but it serves to impart a symmetrlca-l finish to the reservoir; and by its size and location relative to the heating plate, it is freed from injury and discoloratlon by the heat and flame from the lamp or other heater.

The well has a substantially flat bottom, and it receives a plug 6 the bottom 7 of which may beslightly arched, as shown, so

as to trap between itself and the bottom of the well about the percolator tube a small uantity of water that may bejflash'ed into steam in order to insure'not only rapid circulation of the fluid, but a quick initial heatingfof the water, substantially as in the case hereinabove referred to. This plug is de signed to substantially fill the well so that the water can get to its bottom only through the percolator tube 8. vertically through the plug and opens at its bottom, and thence extends upwardly above the top of the reservoir, where itsedge 9 is scalloped or notched, and supplied with a cap 10 fiXed to the edge and having its under surface con'caved and made with a central pro ection, like a mushroom, so as to spread the outcoming fluid forced up through the tube. Beneath this cap is an auxiliary circular spreader 11, fixed to the percolator tube and also serving to spread any fluid falling upon it from the cap, and having its flange knurled, as at 12, orotherwise preparedto afford a hand-grip for facility in inserting and removing the percolater tube. V I I Between the spreader 11 and the plug, and preferably 'just above the plug, is a lateral open-ended pipe 13 fixed to the percola tortube and ope mg into it, and this latnally screw'thread'edor otherwise adapted to receive and retain 'the cap 18, which has a perforated face, which forms the valve seat 19. Betweenth'e cap and the interi r 14 is arranged the cup-shaped valve disk 20,

This tube extends having a stem- 21 which projects from its back. only and plays in the hole 16, and said valve disk seats against the valve seat 19 to close the valve against entrance of flu1d into the percolator tube and to insure the ejection of the contents of the tube at its upper end beneath the cap 10. This valve disk;

has on its back any suitable projection 22 which contacts-with the inner end of the. tube 14: so as to prevent the valve disk from seating on that tube and'closing it, thereby always insuring an open passageway for the fluid through said interior tube and conse- 'quently the presence of suflicient pressure behind the valve disk to seat it, when the pressure obtained by the generation of steam at the bottom of the well is sufficient to expel the superposed column of water upwardly through'the percolator tube. 'When this column of fluid is thus expelled and the pressure momentarily exhausted or reduced, the pressure of the'fiuid 1n the reservoir external to the percolator tube is sufficient to unseat the valve and admit a fresh supply of fluid into the 'percolator tube which is in turn converted into steamand the cycle of operations repeated. The valve the percolator tube.

. verts any of the fluid falling upon it, and thus an equable distribution of the fluid upon the coflee is insured.

The mouth of the reservoir is provided with a horizontal shoulder 2& having overhanging lugs 25, Figs. 1 and 9, and the upper horizontally extending rim 26 of the holder 23 is provided with complementary notches 27 which when alined with the lugs 25 admit of the holder being passed below the lugs so that its rim 26 may rest upon the shoulder 24: of the reservoir and then by tion.

turning the holder so as to carry its notches beyond the lugs 25, the holder and its connected parts will be secured in position in the reservoir safe from accidental disloca- Of course, it is within the invention to make the lugs on the holder and the notches in the reservoir.

In the urn or stand type of percolator, it is advisable to secure the reservoir to the stand so as to prevent accidental movement therefrom. The present invention provides a stand 28 of any approved construction, but having a top ring 29 to which the legs 30 may be secured, and this ring supports a finish ring'31 having an outer raised rim 32 and an inner flat portion 33 in which are keyholeslots 34. The finish ring 31 has its flat portion 33 supported sufficiently high above the top ring 29 to leave a space between the two to receive the depending headed projections or toes next described. The heating plate 4: has applied to it the laterally extending feet 35 which are provided. with the aforesaid depending headed projections or knob-like toes 36 of a contour adapted to enter the larger ends of the keyholeslots 34and to engage the metal adjacent the parallel edges of the slots when the reservoir is turned, so that said reservoir will be locked to the stand securely. The raised rim'32 serves to locate the feet in applying the percolator to the stand and to conceal their edges when so applied, so'as to avoid. projections exposed to the operator.

By the construction described, a clear space is left between the heating plate and the stand rings, for the escape of the flame as well as for circulation of air, thereby preventing discoloration of the stand as well as other heat-injury to it.

The lamp 37 may have the bottom lugs 38 applied to it in any suitable way, as by an integral ring 39, and these lugs enter notches 40 in a stand ring 41, so that by turning the lamp to cause its lugs to pass these notches, the lamp may be fixed to the stand against accidental movement. Here also the reverse construction may be adopted, and the projections or lugs made on the ring on the stand, and the notches in the ring attached to the bottomof the lamp.

I have thus described and illustrated one embodiment of each of the several improvements of'the present invention, as these several features at present appear at their best, but mean to include in the claims hereinafter made such variations as come within the principle of the invention.

What I claim is 1. In a percolator, a reservoir provided with a bottom heating plate, laterally extending feet attached to said heating plate and provided with depending knob-like toes, and a stand for supporting said reservoir having a ring at its top and an upstanding finish ring rising from said firstmentioned ring and provided with slots adapted to be engaged by said knob-like toes to effect the interlocking of the reservoir and stand, the slots being arranged in a portion of the upstanding ring located below the upper level of said ring so as to position the feet within said upstanding ring.

2. In a percolator, a reservoir provided' with a bottom heating-plate, laterally extending feet on said heating-plate provided with depending knob-like toes, a stand forsupporting said reservoir having a top ring and an upstanding finish ring rising from the first-mentioned ring. said finish ring having an inner flat portion provided with slots to receive the knob-liketoes and lo engaged by the knob-like projections on the feet to interlock the reservoir and stand,

said raised rim extending above the fiat portion circumferentially and locating and surrounding the feet. In testimony whereof I have hereunto set my hand this 31 day of March A. D. 1914.

LOUIS VOJIDKOW.

Witnesses:

R. W. SHELTER, HENRY En LAW.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. v 

